Transfer device for substrate and storing device therein

ABSTRACT

The objective of the present invention is to provide a transfer device for substrate capable of preventing deformation or breakage of substrate due to bending stress, by reducing the amount of dead weight deflection of substrate, such as large mother glass boards, etc.  
     Also, on this transfer device for substrate, provided with supporting members in opposite directions disposed in extension from two sides of a storage device, and designed in such a way as to introduce or remove substrate by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, said supporting members are comprised of a plurality of supporting members in parallel formed with a gap between the supporting members facing each other and that said hand is comprised of a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members, and of a longitudinal hand supporting member in the direction of length, positioned between said supporting members facing each other, and connecting said transversal hand supporting members, at the lifting position of the hand.

BACKGROUND OF THE INVENTION

[0001] The present invention relates to a transfer device for substrate, more specifically a transfer device for substrate capable of preventing deformation or breakage due to bending stress, by reducing the amount of substrate dead weight deflection in items such as large mother glass boards, etc., which includes a storage device.

[0002] Mother glass boards such as liquid crystal, etc. are stored in special storage devices such as mother glass board storing cassettes, etc., so they may be stored separately to avoid contact with one another.

[0003] This mother glass board storage cassette is used for both transporting and temporarily storing liquid crystal mother glass boards between manufacturing systems, for example, on large mother glass board manufacturing lines.

[0004] This mother glass board storage cassette is provided with a plurality of supporting members 3 a′, 3 b′ disposed in parallel in opposite directions, extending from two side walls 2 a, 2 b of a box-shaped cassette body 1, as shown in FIG. 9, and is designed in such a way as to introduce or remove mother glass boards 5 by raising and lowering the hand 4′ of a transfer machine inserted in the cassette body 1 between the supporting members 3 a′, 3 b′.

[0005] The cassette body 1 requires a large space at the center, in the direction of the breadth of the cassette body 1, to enable the raising and lowering of a dichotomous fork-shaped hand 4′, and is therefore formed in such a way that the supporting members 3 a′, 3 b′ protrude a comparatively short distance from the left and right side walls 2 a, 2 b.

[0006] In such a case, it is so arranged that the mother glass boards 5 stored in the cassette body 1 are supported by the supporting members 3 a′, 3 b′ provided in extension from the left and right side walls 2 a, 2 b of the cassette body 1, to reduce dead weight deflection of the mother glass boards 5 stored there.

[0007] Moreover, for the hand 4′ of a transfer machine used to introduce and remove of mother glass boards 5 in/from the cassette body 1, the dimension L in the direction of the breadth of the hand 4′ is fixed, to avoid an increase of mother glass board 5 deflection in a state where the mother glass boards 5 are raised with this hand 4′.

[0008] However, with the progress in recent years of a general trend for larger and thinner mother glass boards, even mother glass boards of high rigidity have come to produce excessive deflection. As a result, with said conventional mother glass boards storing cassettes, the length of supporting members is restricted to short distances, and the dichotomous fork-shaped hand, the dead weight deflection of mother glass boards 5 has increased and the mother glass boards themselves are subject to increased bending stress because of this deflection, presenting the problems of deformation or breakage.

[0009] Thus, as shown in FIG. 10, while the mother glass board 5 stored in the cassette body 1 is subject to a large dead weight bending force as the size of the mother glass board 5 becomes larger than that in FIG. 7, the dimension L in the direction of the breadth of the hand 4′ must be reduced to extend the supporting members 3 a′, 3 b′ to the center in the direction of the breadth of the mother glass board 5, to correct this bending.

[0010] However, if the dimension L in the direction of the breadth of the hand 4′ is reduced, the deflection of the mother glass board 5 placed on the hand 4′ gets in the state indicated by the dotted line in FIG. 10(c), and the mother glass board 5 is subject to a great bending force, allowing it to be easily deformed or broken.

SUMMARY OF THE INVENTION

[0011] The objective of the present invention, realized in view of said problems with conventional transfer devices for substrate, is to provide a transfer device for a substrate capable of preventing deformation or breakage of said substrate due to bending stress, by reducing the amount of dead weight deflection on substrate such as large mother glass boards, etc., which includes a storage device.

[0012] To achieve said objective, the transfer device for substrate according to this first invention is a transfer device for substrate provided with supporting members in opposite directions disposed in extension from two sides of a storage device, and designed in such a way as to introduce or remove substrate by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, characterized in that said supporting members are comprised of a plurality of supporting members in parallel formed with a gap between the supporting members facing each other and that said hand is comprised of a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members, and of a longitudinal hand supporting member in the direction of length, positioned between said supporting members facing each other, and connecting said transversal hand supporting members to each other, at the lifting position of the hand.

[0013] In this case, said hand may be comprised of a plurality of transversal hand supporting members in the direction of breadth which can pass through the gap between said parallel supporting members, and of a pair of longitudinal hand supporting members, provided side by side with a gap in the direction of breadth connecting said transversal hand supporting members to each other, at the lifting position of the hand.

[0014] Moreover, to achieve said same objective, the transfer device for substrate according to this second invention is a transfer device for substrate provided with supporting members in opposite directions disposed in extension from two sides of the storage device, and designed in such a way as to introduce or remove mother glass boards by raising and lowering the hand of a transfer machine inserted in the storage device between said supporting members, characterized in that an auxiliary supporting member is provided at an intermediate position between said supporting members, and that said hand is comprised of a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members, and of a pair of longitudinal hand supporting members, provided side by side with a gap in the direction of breadth connecting said transversal hand supporting members to one another, at the lifting position of the hand.

[0015] Furthermore, to achieve said same objective, the transfer device for substrate according to this third invention is a transfer device for substrate provided with supporting members in opposite directions disposed in extension from two sides of the storage device, and designed in such a way as to introduce or remove mother glass boards by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, characterized in that an auxiliary supporting member is provided at an intermediate position between said supporting members, and that said hand is comprised of a pair of wide longitudinal hand supporting members, provided side by side with a gap in the direction of breadth.

[0016] Still more, the storage device used for said transfer device for substrate according to the first invention is a storage device provided with supporting members in opposite directions disposed in extension from two sides and designed in such a way as to introduce or remove mother glass boards by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, characterized in that said supporting members are comprised of a plurality of supporting members in parallel formed with a gap between the supporting members facing each other and formed by providing, between the supporting members facing each other, a gap enabling the passage of a longitudinal hand supporting member in the direction of length connecting a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members to each other, at the lifting position of the hand.

[0017] In such a case, said supporting members may be formed in the same shape, and vertically disposed in a plurality of stages inside the storage device.

[0018] Also, it is possible to provide either an auxiliary longitudinal hand supporting member between a pair of wide longitudinal hand supporting members in parallel with the latter, or an auxiliary supporting member in parallel at an intermediate position of the supporting members provided in extension in opposite directions from both sides of the storage device.

[0019] Moreover, a cushioning member may be provided at the top face of the supporting members, directly supporting a substrate.

[0020] This transfer device for substrate and the storage device used for it can expand the support area of substrate with the supporting member of the storage device or the hand supporting member of the transfer machine for a wide range of substrate, and can prevent deformation or breakage of substrate due to bending stress, by reducing the amount of dead weight deflection of large-sized substrate.

[0021] It should be noted that by comprising the hand of the transfer machine with a pair of longitudinal hand supporting members, provided side-by-side with a gap in the direction of breadth, it becomes possible for the hand to maintain a high rigidity, even if the hand is formed of small thickness, and can thus increase the number of substrate pieces per unit capacity of the storage device by reducing the insertion space of the hand.

[0022] Moreover, by forming said supporting members in the same shape and vertically disposing them in a plurality of stages inside the storage device, it becomes possible to store a large number of mother glass boards in the cassette.

[0023] Furthermore, by providing an auxiliary longitudinal hand supporting member and an auxiliary supporting member in parallel, it becomes possible to handle substrate of larger size.

[0024] Still more, by further providing a cushioning member directly supporting a substrate at the top face of the supporting members, the transfer of substrate can be performed smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS

[0025]FIG. 1 indicates the first embodiment of the transfer device for substrate according to the present invention, (a) being a plan view omitting the top plate, and (b) a front elevation.

[0026]FIG. 2 is a perspective view showing the transfer device for substrate in the same embodiment as above.

[0027]FIG. 3 indicates the second embodiment of the transfer device for substrate according to the present invention, (a) being a plan view omitting the top plate, and (b) a front elevation.

[0028]FIG. 4 indicates the state of transfer to cassette body by a transfer device in the third embodiment of the transfer device for substrate according to the present invention, (a) being a plan view omitting the top plate, (b) a front elevation, and (c) a side view of the longitudinal hand supporting member of the hand.

[0029]FIG. 5 indicates the state of transfer to pedestal of the same transfer device as above, (a) being a plan view, and (b) a front elevation.

[0030]FIG. 6 indicates the state of transfer to pedestal by a transfer device in the fourth embodiment of the transfer device for substrate according to the present invention, (a) being a plan view omitting the top plate, and (b) a front elevation.

[0031]FIG. 7 is a plan view showing the state of transfer to a cassette body by a transfer device in the fifth embodiment of the transfer device for substrate according to the present invention, omitting the top plate.

[0032]FIG. 8 is a plan view showing the state of transfer to a pedestal by the same transfer device as above.

[0033]FIG. 9 indicates a conventional transfer device for substrate, (a) being a plan view omitting the top plate, (b) a front elevation, and (c) an explanatory drawing showing the relationship between the dimension in the direction of breadth of the hand and the deflection of a mother glass board.

[0034]FIG. 10 indicates a conventional transfer device for large-sized substrate, (a) being a plan view omitting the top plate, (b) a front elevation, and (c) an explanatory drawing showing the relationship between the dimension in the direction of breadth of the hand and the deflection of a mother glass board.

DETAILED DESCRIPTION OF THE INVENTION

[0035] Embodiments of the transfer device for substrate and storing device therein according to the present invention will be explained hereafter as an example in which a mother glass board is the object material to be transferred, based on drawings.

[0036] FIGS. 1˜2 indicate the first embodiment of the transfer device for substrate and the storage device used for it according to the present invention.

[0037] This transfer device for substrate, used in combination with other transfer devices, is provided with a plurality of supporting members 3 a, 3 b disposed in parallel in opposite directions in extension from two side walls 2 a, 2 b on the left and right of the box-shaped cassette body 1, and comprised in such a way as to introduce or remove the mother glass board 5 by raising and lowering the hand 4 of a transfer machine 40 inserted into the cassette body 1 between the supporting members 3 a, 3 b.

[0038] And, in this embodiment, on such a transfer device for substrate, the supporting members 3 a, 3 b of said mother glass board 5 are formed with a gap 7 between the supporting members 3 a, 3 b facing each other, and said hand 4 is comprised of a plurality of transversal hand supporting members 41 in the direction of breadth positioned between said parallel supporting members 3 a or 3 b, and of a longitudinal hand supporting member 42 in the direction of length, positioned between said supporting members 3 a, 3 b facing each other, and said transversal hand supporting members 41 are connected to each other, at the lifting position of the hand 4.

[0039] Moreover, on this transfer device for substrate, said supporting members 3 a, 3 b are formed in the same shape, and disposed vertically in a plurality of stages inside the cassette body 1.

[0040] The supporting members 3 a, 3 b are installed on the same plane, to support one sheet of mother glass board 5 in a horizontal position, and disposed in parallel in 5 pieces each on the left and right side walls 2 a, 2 b respectively, so that the supporting members 3 a, 3 b of the left and right side walls 2 a, 2 b may come to the same position in the direction of depth, as shown in FIG. 1(a).

[0041] And, the supporting members 3 a, 3 b of the left and right side walls 2 a, 2 b extend up horizontally to near the center in the direction of breadth of the cassette body 1.

[0042] Furthermore, provided at the top of the supporting members 3 a, 3 b are cushioning members 6 in the shape of the projection (or in the shape of a protruding bar) formed using an elastic body, etc. such as synthetic rubber, etc., for example, directly supporting the mother glass board 5, as shown in FIG. 1(b). In this embodiment, in a pair of supporting members 3 a, 3 b on the left and right, the mother glass board 5 is supported at total of 4 points, 2 points near the center and 2 points near the end, but it may also be supported by no less than 6 points.

[0043] In this way, these supporting members 3 a, 3 b extending up near the center in the direction of breadth of the cassette body 1 can reduce the amount of dead weight deflection of the mother glass board 5, thereby prevent breakage of the mother glass board 5 due to bending stress at the time of storage.

[0044] Still more, the transversal hand supporting members 41 and the longitudinal hand supporting member 42 of the hand 4 are formed integrally on the same plane, in order to transfer the mother glass board 5 horizontally, and these transversal hand supporting members 41 and the longitudinal hand supporting member 42 are formed at positions that do not interfere with the supporting members 3 a, 3 b in the lifting position of the hand 4.

[0045] The transversal hand supporting members 41 consist of a sheet-like material extending from the center in the direction of breadth of the cassette body 1 up the left and right side walls 2 a, 2 b.

[0046] The longitudinal hand supporting member 42 consists of a long sheet-like material connecting said plurality of transversal hand supporting members 41 to each other at the center in the direction of breadth of the cassette body 1.

[0047] By comprising such transversal hand supporting members 41 and a longitudinal hand supporting member 42, the hand 4 can transfer a large mother glass board 5 in such a way as to reduce the amount of dead weight deflection of the mother glass board 5, so as to prevent breakage of the mother glass board 5 due to bending stress at the time of transfer.

[0048] In addition, on the transfer device for substrate of this embodiment, the supporting members 3 a, 3 b supporting the mother glass board 5 are formed with a prescribed gap 7 between the supporting members 3 a, 3 b facing each other, and said hand 4 is comprised of a plurality of transversal hand supporting members 41 disposed between parallel supporting members 3 a or 3 b, and of a longitudinal hand supporting member 42 disposed between said supporting members 3 a, 3 b facing each other and connecting said transversal hand supporting members 41 to each other, at the insertion position of the hand 4, as shown in FIG. 1, making it possible to extend said supporting members 3 a, 3 b to near the center of the mother glass board 5, to thereby store a large mother glass board 5 in such a way as to reduce the amount of deflection by its own dead weight and prevent breakage of the mother glass board 5 due to bending stress at the time of storage.

[0049] Yet more, by forming the hand 4 of the transfer machine, at the insertion position of the hand 4, with a plurality of transversal hand supporting members 41 in the direction of breadth disposed between parallel supporting members 3 a or 3 b, and a longitudinal hand supporting member 42 disposed between said supporting members 3 a, 3 b facing each other and connecting said transversal hand supporting members 41 to each other, it becomes possible to increase the dimension L in the direction of breadth of the hand 4 up to the end part of the mother glass board 5, to thereby store a large mother glass board 5 in such a way as to reduce the amount of its dead weight deflection and prevent breakage of the mother glass board 5 due to bending stress at the time of transfer.

[0050] Note that the transfer device for substrate of this embodiment can effectively store and /transfer liquid crystal mother glass boards 5 of 1200×1000 mm or so in size, and also of no less than 2000×1700 mm in size, if required.

[0051] Next, the second embodiment of the transfer device for substrate and storage device according to the present invention will be explained, with reference to FIG. 3.

[0052] This transfer device for substrate is provided, in the same way as the first embodiment, with a plurality of supporting members 3 a or 3 b disposed in parallel in opposite directions in extension from two side walls 2 a, 2 b on the left and right of the box-shaped cassette body 1, and comprised in such a way as to introduce or remove a mother glass board 5 by raising and lowering the hand 4 of a transfer machine inserted into the cassette body 1 between the supporting members 3 a, 3 b.

[0053] And, said supporting members 3 a, 3 b of the mother glass board 5 are formed with a prescribed gap 7 between the supporting members 3 a, 3 b facing each other, and said hand 4 is comprised of a plurality of transversal hand supporting members 41 positioned between said parallel supporting members 3 a or 3 b, and of a longitudinal hand supporting member 42 in the direction of length positioned between said supporting members 3 a, 3 b facing each other and connecting said transversal hand supporting members 41 to each other, at the lifting position of the hand 4.

[0054] Furthermore, said supporting members 3 a, 3 b are formed in the same shape, and vertically disposed in a plurality of stages inside the cassette body 1.

[0055] The supporting members 3 a, 3 b are installed on the same plane, to support the mother glass board 5 in a horizontal position, and disposed in parallel in 5 pieces each on the left and right side walls 2 a, 2 b respectively, so that the supporting members 3 a, 3 b of the left and right side walls 2 a, 2 b may come to the same position in the direction of depth, as shown in FIG. 3(a).

[0056] Also, the supporting members 3 a, 3 b of the left and right side walls 2 a, 2 b are formed in such a way as to have a prescribed gap 7 between the supporting members 3 a, 3 b facing each other, and the position of this gap 7 is displaced alternately, left and right in the direction of depth from the opening 1 a of the cassette body 1.

[0057] Therefore, while the supporting member 3 a on the left side wall 2 a is formed longer than the supporting member 3 b on the right side wall 2 b, at the first, third and fifth supporting members 3 a, 3 b from the opening 1 a, the supporting member 3 b of the right side wall 2 b is formed longer than the supporting member 3 a on the left side wall 2 a, at the second and fourth supporting members 3 a, 3 b.

[0058] It should be noted that the top of the supporting members 3 a, 3 b are provided with cushioning members directly supporting the mother glass board 5, in the same way as in the first embodiment, as shown in FIG. 3(b).

[0059] These supporting members 3 a, 3 b are extended alternately, and can further reduce the amount of dead weight deflection of the mother glass board 5 by dispersing the position of the gaps 7 between the supporting members 3 a, 3 b, to thereby prevent breakage of the mother glass board 5 due to bending stress at the time of storage.

[0060] Also, the transversal hand supporting members 41 and the longitudinal hand supporting member 42 of the hand 4 are formed integrally on the same plane, in order to transfer the mother glass board 5 horizontally.

[0061] The transversal hand supporting members 41 consist of a sheet-like material extended from the center in the direction of breadth of the cassette body 1 up the left and right side walls 2 a, 2 b.

[0062] The longitudinal hand supporting member 42 consists of a long sheet-like material connecting said plurality of transversal hand supporting members 41 in a zigzag pattern at the position of the gap 7 between the supporting members 3 a, 3 b.

[0063] By comprising such transversal hand supporting members 41 and a longitudinal hand supporting member 42 displaced alternately, the hand 4 can further reduce the amount of dead weight deflection of the mother glass board 5, to thereby prevent breaking of the mother glass board 5 due to bending stress at the time of transfer.

[0064] Next, FIGS. 4˜5 indicate the third embodiment of the transfer device for substrate and storage device according to the present invention.

[0065] This transfer device for substrate, intended for (transferring) mother glass boards and used in combination with other transfer devices, is provided with a plurality of supporting members 3 a, 3 b disposed in parallel in opposite directions in extension from two side walls 2 a, 2 b on the left and right sides of the box-shaped cassette body 1 as a storage device, and is comprised in such a way as to introduce or remove a mother glass board 5 by raising and lowering the hand 4 of a transfer machine (not illustrated) inserted into the cassette body 1 between the supporting members 3 a, 3 b.

[0066] In this embodiment, on such a transfer device for substrate, the supporting members 3 a, 3 b of the mother glass board 5 are formed with a gap 7 at a prescribed dimension between the supporting members 3 a, 3 b facing each other, and said hand 4 is comprised of a plurality of transversal hand supporting members 41 in the direction of breadth which can pass through the gap between said parallel supporting members 3 a or 3 b, and of a pair of longitudinal hand supporting members 42, provided in parallel with a gap in the direction of breadth between said supporting members 3 a, 3 b facing each other and connecting between the left and right transversal hand supporting members 41, at the lifting position of the hand 4.

[0067] Still more, on this transfer device for substrate, said supporting members 3 a, 3 b are formed in the same shape, and disposed vertically in a plurality of stages inside the cassette body 1.

[0068] The supporting members 3 a, 3 b are installed on the same plane, to support one sheet of mother glass board 5 in a horizontal position, and disposed in parallel in 5 pieces each on the left and right side walls 2 a, 2 b respectively, so that the supporting members 3 a, 3 b of the left and right side walls 2 a, 2 b may come to the same position in the direction of depth, as shown in FIG. 4(a).

[0069] In addition, the supporting members 3 a, 3 b of the left and right side walls 2 a, 2 b are extended horizontally up to near the center in the direction of breadth of the cassette body 1.

[0070] Furthermore, provided on the top face of the supporting members 3 a, 3 b are cushioning members 6 directly supporting the mother glass board 5, as shown in FIG. 4(b). In this embodiment, on a pair of supporting members 3 a, 3 b on the left and right, the mother glass board 5 is supported at 4 points in total or 2 points near the center and 2 points near the end, but it may also be supported by no less than 6 points.

[0071] In this way, the supporting members 3 a, 3 b extending up near the center in the direction of breadth of the cassette body 1 can reduce the amount of dead weight deflection of the mother glass board 5, to thereby prevent deformation or breakage of the mother glass board 5 due to bending stress at the time of storage.

[0072] Still more, the transversal hand supporting members 41 and the longitudinal hand supporting member 42 of the hand 4 are formed integrally on the same plane, in order to transfer the mother glass board 5 horizontally, and these transversal hand supporting members 41 and longitudinal hand supporting member 42 are formed at positions not interfering with the supporting members 3 a, 3 b in the lifting position of the hand 4.

[0073] The transversal hand supporting members 41 consist of a sheet-like material extending from the center in the direction of breadth of the cassette body 1 up the left and right side walls 2 a, 2 b.

[0074] The longitudinal hand supporting member 42 consists of a long sheet-like material provided in parallel with a gap of prescribed dimension in the direction of breadth, the respective longitudinal hand supporting member 42 connecting the left and right transversal hand supporting members 41 to each other.

[0075] By comprising such transversal hand supporting members 41 and the longitudinal hand supporting member 42, the hand 4 can transfer a large mother glass board 5 in such a way as to reduce the amount of dead weight deflection of the mother glass board 5, so as to prevent deformation or breakage of the mother glass board 5 due to bending stress at the time of transfer.

[0076] As described above, on the transfer device for substrate of this embodiment, the supporting members 3 a, 3 b supporting the mother glass board 5 are formed with a prescribed gap 7 between the supporting members 3 a, 3 b facing each other, and said hand 4 is comprised of a plurality of transversal hand supporting members 41 disposed between parallel supporting members 3 a or 3 b, and of a longitudinal hand supporting member 42 disposed between said supporting members 3 a, 3 b facing each other and connecting said transversal hand supporting members 41 to each other, at the insertion position of the hand 4, as shown in FIG. 4, making it possible to extend said supporting members 3 a, 3 b near the center of the mother glass board 5, to thereby store a large mother glass board 5 in such a way as to reduce the amount of its dead weight deflection and prevent deformation or breakage of the mother glass board 5 due to bending stress during storage.

[0077] In addition, by forming the hand 4 of the transfer machine, at the insertion position of the hand 4, with a plurality of transversal hand supporting members 41 in the direction of breadth disposed between parallel supporting members 3 a or 3 b, and a longitudinal hand supporting member 42 disposed between said supporting members 3 a, 3 b facing each other and connecting said transversal hand supporting members 41 to each other, it becomes possible to increase the dimension L in the direction of breadth of the hand 4 up to around the end of the mother glass board 5, to thereby store a large mother glass board 5 in such a way as to reduce the amount of its dead weight deflection and prevent deformation or breakage of the mother glass board 5 due to bending stress at the time of transfer.

[0078] It should be noted that the transfer device for substrate of this embodiment can effectively store and transfer a liquid crystal mother glass board 5 of 1200×1000 mm or so in size, and also of no less than 2000×1700 mm, if required.

[0079] Furthermore, by forming the longitudinal hand supporting members 42 of the hand 4 in such a way as to be split into left and right sides, it becomes possible to increase the rigidity of the hand 4, by reducing the load on the respective longitudinal hand supporting members 42, and to also perform the transfer of a mother glass board 5 in adaptation to a pedestal 8 provided with an auxiliary supporting member 81 longitudinally at the center as a storage device, as shown in FIGS. 5 and 6, for example.

[0080] This pedestal 8 is intended to support a mother glass board 5 with both the left and right supporting members 82 and the auxiliary supporting member 81 at the center, and FIG. 6 indicates the transfer of a mother glass board 5 by a pair of wide (having a dimension L₁ in the direction of breadth no less than 20% larger than the dimension of breadth L₀ of mother glass boards 5 respectively) longitudinal hand supporting members 43 provided in parallel with a gap in the direction of breadth to the pedestal 8. As shown in this embodiment, the transversal hand supporting members 41 may be omitted, in a case where the longitudinal hand supporting members 43 are formed with a large width.

[0081] In addition, as shown in FIGS. 7 and 8, it is possible to provide either one or more auxiliary longitudinal hand supporting members 42 a between a pair of wide longitudinal hand supporting members 42 in parallel with the latter, or to provide one or more auxiliary supporting members 2 c, 2 d, 81 in parallel, at an intermediate position of the supporting members 2 a, 2 b, 82 provided in extension in opposite directions from both sides of the cassette body 1 or the pedestal 8 as storage device.

[0082] As described above, by providing auxiliary longitudinal hand supporting member 42 a and auxiliary supporting members 2 c, 2 d, 81 in parallel, it becomes possible to handle mother glass boards 5 of a larger size.

[0083] The transfer device for substrate according to the present invention has so far been explained, based on a plurality of embodiments. However, the present invention is not limited to the constructions described in said embodiments, and its construction can be modified as desired to the extent in which it does not deviate from its purpose, by either combining as required the constructions described in the respective embodiments (applying the construction of the cassette body as a storage device to the pedestal or, conversely, applying the construction of the pedestal as a storage device to the cassette body), etc. Moreover, the device for handing over substrate with the transfer machine is not restricted to cassettes or pedestals, and the object of transfer can also be applied widely to substrate other than mother glass boards.

[0084] According to the transfer device for substrate and storing device therein according to the present invention, it becomes possible to expand the supporting (area) of substrate by the supporting member of the storage device or the hand supporting member of the transfer machine to a wide range of the substrate, and it can prevent deformation or breakage of substrate due to bending stress, by reducing the amount of dead weight deflection of a large-sized substrate, to thereby enable the acquisition of high-quality processed of substrate product. 

1. A transfer device for substrate, provided with supporting members in opposite directions disposed in extension from two sides of a storage device, and designed in such a way as to introduce or remove substrate by raising and lowering the hand of a transfer machine inserted into the storing device between said supporting members, characterized in that said supporting members are comprised of a plurality of supporting members in parallel formed with a gap between the supporting members facing each other and that said hand is comprised of a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members, and of a longitudinal hand supporting member in the direction of length, positioned between said supporting members facing each other, and connecting said transversal hand supporting members to each other, at the lifting position of the hand.
 2. A transfer device for substrate as defined in claim 1, wherein said hand is comprised of a plurality of transversal hand supporting members in the direction of breadth which can pass through the gap between said parallel supporting members, and of a pair of longitudinal hand supporting members, provided side by side with a gap in the direction of breadth connecting said transversal hand supporting members to one another, at the lifting position of the hand.
 3. A transfer device for substrate, provided with supporting members in opposite directions disposed in extension from two sides of a storage device, and designed in such a way as to introduce or remove substrate by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, characterized in that an auxiliary supporting member is provided at an intermediate position between said supporting members, and that said hand is comprised of a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members, and of a pair of longitudinal hand supporting members, provided side by side with a gap in the direction of breadth connecting said transversal hand supporting members to one another, at the lifting position of the hand.
 4. A transfer device for substrate, provided with supporting members in opposite directions disposed in extension from two sides of the storage device, and designed in such a way as to introduce or remove mother glass boards by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, characterized in that an auxiliary supporting member is provided at an intermediate position between said supporting members, and that said hand is comprised of a pair of wide longitudinal hand supporting members, provided side-by- side with a gap in the direction of breadth.
 5. A transfer device for substrate as defined in claim 2, wherein an auxiliary longitudinal hand supporting member is provided between a pair of wide longitudinal hand supporting members in parallel with the latter.
 6. A transfer device for substrate as defined in claim 3, wherein an auxiliary longitudinal hand supporting member is provided between a pair of wide longitudinal hand supporting members in parallel with the latter.
 7. A transfer device for substrate as defined in claim 4, wherein an auxiliary longitudinal hand supporting member is provided between a pair of wide longitudinal hand supporting members in parallel with the latter.
 8. A transfer device for substrate as defined in claim 1, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 9. A transfer device for substrate as defined in claim 2, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 10. A transfer device for substrate as defined in claim 3, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 11. A transfer device for substrate as defined in claim 4, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 12. A transfer device for substrate as defined in claim 5, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 13. A transfer device for substrate as defined in claim 6, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 14. A transfer device for substrate as defined in claim 7, wherein a cushioning member directly supporting the substrate is provided, at the top face of the supporting members.
 15. A storage device provided with supporting members in opposite directions disposed in extension from two sides and designed in such a way as to introduce or take out mother glass boards by raising and lowering the hand of a transfer machine inserted into the storage device between said supporting members, characterized in that said supporting members are comprised of a plurality of supporting members in parallel formed with a gap between the supporting members facing each other and formed by providing, between the supporting members facing each other, a gap enabling the passage of a longitudinal hand supporting member in the direction of length connecting a plurality of transversal hand supporting members in the direction of breadth positioned between said parallel supporting members to each other, at the lifting position of the hand.
 16. A transfer device for substrate as defined in claim 15, wherein said supporting members are formed in the same shape, and vertically disposed in a plurality of stages inside the storing device.
 17. A transfer device as defined in claim 15, wherein an auxiliary supporting member is provided in parallel at an intermediate position of the supporting members provided in extension in opposite directions from both sides of the storage device.
 18. A transfer device as defined in claim 16, wherein an auxiliary supporting member is provided in parallel at an intermediate position of the supporting members provided in extension in opposite directions from both sides of the storage device.
 19. A transfer device as defined in claim 15, wherein a cushioning member directly supporting the substrate is provided on the top face of the supporting members.
 20. A transfer device as defined in claim 16, wherein a cushioning member directly supporting the substrate is provided on the top face of the supporting members.
 21. A transfer device as defined in claim 17, wherein a cushioning member directly supporting the substrate is provided on the top face of the supporting members.
 22. A transfer device as defined in claim 18, wherein a cushioning member directly supporting the substrate is provided on the top face of the supporting members. 